TROUBLE SHOOTING GUIDE
SYMPTOM
SOLUTION
Sound a successive “DI” “DI” tone
1.Make sure that there is no other
metal detector operating around.
The LCD displays normal,but the
sensitivity is very low.
1.When turning on,there is metal near
the search coil.
2.Let the search coil leave the ground,
and then turn on the unit again.
Sound an irregular tone,or the
target identification cursor chatters.
1.Don’t use it indoors,because there
is many metals there.
2.Make sure whether there is
electromagnetic interference source,
such as power lines,cables,
electronic fences and so on.Keep
away from these areas,or try to
reduce the sensitivity.
The signal is unstable,and the
position of the target identification
cursor is changing.
1.Sweep at a different angle,in order
to determine whether you can get a
more stable signal.
2.If the target is buried deeply,you
could try to increase the sensitivity or
speed up the speed of sweeping the
search coil,in order to get a more
stable signal.
3.Maybe more than one metal targets
buried there,try to increase the
sensitivity or set different
discrimination range to sweep.
4.Maybe you find a severe oxidation
target,or the ground is serious
magnetic,you should try to decrease
the sensitivity.
Using PINPOINT,when the search
coil approaching the ground,the
unit will sound a tone.
1.The surface is severe magnetic,you
need to do the ground balance
adjustment,or you should press the
PINPOINT button again to reduce the
sensitivity.
2.There is large metals underground.
Using PINPOINT,when the search
coil approach the ground,the unit
will sound a tone.
1.The ground is serious magnetic,
need to adjust the balance.In the
position near the ground,touch the
PINPOINT button,to reduce the
sensitivity.
2.There is large metal under ground.
Summary of Contents for PHMD74
Page 1: ...PHMD74 USER MANUAL...
